Just curious on this. Been pondering it lately.
MAX HP on a 400CC DRZ?
Started by BONESTOCK, Sep 26 2009 06:27 PM
34 replies to this topic
Posted 26 September 2009 - 06:29 PM
BONESTOCK said:
Just curious on this. Been pondering it lately.
Last I heard it was 60hp!:ride:
Posted 26 September 2009 - 06:31 PM
I think that's bored and stroked though-
I'm also curious what FCR/3x3/Exhaust/cams will do. Any other mods I'm missing for stock displacement?
I'm also curious what FCR/3x3/Exhaust/cams will do. Any other mods I'm missing for stock displacement?
Posted 26 September 2009 - 06:53 PM
mgw24 said:
I think that's bored and stroked though-
I'm also curious what FCR/3x3/Exhaust/cams will do. Any other mods I'm missing for stock displacement?
I'm also curious what FCR/3x3/Exhaust/cams will do. Any other mods I'm missing for stock displacement?
need more info
like what cams and what pipe
I can make a good guess with the added info
eddie - bronco - willy can tell you better than I can
Posted 26 September 2009 - 08:01 PM
before you go for big horse power , consider how to make the bike hook up .
you can have it all but if you cant get traction it defeats the purpose IMO .
you can have it all but if you cant get traction it defeats the purpose IMO .
Posted 26 September 2009 - 09:29 PM
I dont see it being much higher than 45. Add the E base gasket, some porting and cam timing, even with that i'd still guess with the 398cc's you're limited to about 47ish rear wheel horsepower. And thats probably rather optimistic.
Posted 26 September 2009 - 09:37 PM
You gotta bore and stroke for big HP.
If not you cant expect to hit 50, on run 61 of Eddie's he's on;y getting 41 with FCR jetting and pipe (Akro).
Guessing with valves, and cams you could get another 2-3, Yosh pipe add 2 more. 45 or 47 would be it.
Eddie credits the crank with 4-5 hp.
its tough to decipher what each part will do b/c if you want to go Big Bore and Stroker you need fcr 41 instead of 39. Then theres all Eddies head work.
If not you cant expect to hit 50, on run 61 of Eddie's he's on;y getting 41 with FCR jetting and pipe (Akro).
Guessing with valves, and cams you could get another 2-3, Yosh pipe add 2 more. 45 or 47 would be it.
Eddie credits the crank with 4-5 hp.
its tough to decipher what each part will do b/c if you want to go Big Bore and Stroker you need fcr 41 instead of 39. Then theres all Eddies head work.
Posted 26 September 2009 - 09:50 PM
chooken said:
before you go for big horse power , consider how to make the bike hook up .
you can have it all but if you cant get traction it defeats the purpose IMO .
you can have it all but if you cant get traction it defeats the purpose IMO .
More of an issue with an S or K, SM not so much on pavement I would think. I understand what you are getting at though: on Dirt- the best dollar I have spent on my KX has been with the suspension and tires. I guess I'm not a good enough "street" rider to see the difference with my DR-Z SM. At stock settings- the DR-Z SM handles so much better stock than my ZX-6 ever did. But- apples to oranges.
Posted 27 September 2009 - 12:38 AM
I know you can reach 60hp with bore and stroke from SSW. If i rode on the street only I would love to have it. But I ride offroad 95% of the time and there is no need for 70hp where I ride. Im just curious to what a well build 400 (398) would do thats all. MRD pipe FCRMX Cams etc etc. I was guessing 45 or so and to me that plenty.
Posted 27 September 2009 - 04:14 AM
depends on what fuel you are willing to run.
low 40's pretty easy.
low 40's pretty easy.
Posted 27 September 2009 - 05:12 AM
I installed the yosh ti, so might have added another hp, the FMF is basically an E exhaust. I also put the stock S cdi back on. 3600 miles since Eddie's magic and bike is still running great!
Posted 27 September 2009 - 01:49 PM
just got back into drz ownership.... allbeit fitted into a ccm 404.... but when i had a E spec drz last with a full fmf system,powerbomb header and Q silencer it made just over 45hp......got a dyno print out somewhere on the web if i can find it
Found it amongst pics of the drz.....
http://gallery43749....et/c114298.html
Found it amongst pics of the drz.....
http://gallery43749....et/c114298.html
Posted 27 September 2009 - 03:08 PM
martin_brown said:
just got back into drz ownership.... allbeit fitted into a ccm 404.... but when i had a E spec drz last with a full fmf system,powerbomb header and Q silencer it made just over 45hp......got a dyno print out somewhere on the web if i can find it
that is the key to your 45hp
you had the 39mm FCR carb and little better cams from the factroy -- so you ware making bamn near 39HP out of the box
take the normal SM with the 36mm carb stock cams and just a rejet and pipe your looking under 35hp
Posted 27 September 2009 - 03:29 PM
Agreed the E spec will be more powerfull than the S ... pretty well gospel knowledge on here by now,thought the op's question related to capacity and power though regardless of cams and carb set up.....
Posted 27 September 2009 - 06:22 PM
So all I need to make my S engine an E engine is
1. FCR 39mm
2. E model Cams
3. Base Gasket
And to make the low 40s hp I will need an exhaust. I have stock S model exhuast. I really like the FMF Q4 because it is quiet.
1. FCR 39mm
2. E model Cams
3. Base Gasket
And to make the low 40s hp I will need an exhaust. I have stock S model exhuast. I really like the FMF Q4 because it is quiet.
Posted 27 September 2009 - 08:36 PM
The E also has a different exhaust with a slightly larger head pipe diameter than the S/SM. (IIRC)
